Plug-cock.



K. G. THHVIAN.

PLUG COCK.

APPLICATION FILED MAY 11. me.

1,283,356. Patented Oct. 29, 1918.

@KnU'r G. THIMAN, or NEW YORK, N..Y.-

LUG-coc To all whore it mayamcem-g Be it'known that I, Kivirr G. TrriMAri, a c1t1- zen of Sweden,and resident ofthe borough of Manhattan,inth e county of New. York and" StateofNe'w York, have invented certain new and useful Improvements n Plug- Cocks, of whlch .the following 1s a spe'clfication.

This invention relates,in general, to valvesor the rotatable variety, wherein 'a turnplug is made to control a passage through a casing, but in .more restricted sense it is especially applicable to gascocks, such as are employed in conjunction with illuminating fixtures.

One of the objects of the inventionis to produce an-improved deviceof the nature set forth, capable of being quickly'regulated so that the gas or other fluid flowing there through may be hadeither in a full stream, or reduced to theti'niest -j et that can 1 feed a flamegor entirely out off, simply by turning the plugin one of three readily determined positions.

A further object isthe production of a device of the character described including a pecul-iarly designed means of manipulation for theplug -1nember thereof, which shall be so constructed and arranged as "to enable the operator though groping in darkness, to ascertain at encefian'd unerringly the position in which it stands, by the mere sense of touch. i

.Another object is to provide adevice of thespecies mentioned which shall favorably compare with the common, inexpensive form of gascock now on the market, 'beiugco1nr posedof as few, simple" and durable parts,

i Specification of Letters Patent.

. Applicationfilecl Mayer, 1916. Serial No. 9,0'9i.

Patented oat-.219, 191s;

In the said drawingsf Figure 1 is a central longitudinalsection of the device, the section running along the line 11 of Fig. 4%, lookingin the direction indicated by the arrows in the latter named figure, and the rotatable member being changed in position};

- Figs. 2 i and 3 are views similar to the preceding with the said member differently positioned, I

Fig. at is a longitudinal section on theline H of Fig. 3, looking toward the left; and

Fig. 5 is a transverse section on'the line 55 of Fig. 1, looking in an upward direction. h

In these views the numeral 11 denotes the body or casing of a gas-cockconstructed in accordancewith the present in'ventiomwhich in its preferred form comprises a central laterally protuberate part 12, contracted neck-portions 13, 14 integral therewith, and terminals 15', 16 also swelled-out, and reinforced by circumferential"beads 17 18, respectively. The terminals are provided with recesses 19, 20 oneineach, which are internally threaded and constitute sockets for the reception of gas conduit pipes (not shown) wherewith the device is u sually connected up.

With the exception of the laterally-protuberate part 12 aforesaid-more particularly referred to hereinafter, the above enumerated elements combine features that are found in the ordinary typesof gascocks or faucets, all of which readily assimilate with the invention. But it is understood that other features of construction may well be adopted instead. Thus, although the present exemplification of the invention indicates that the device has double pipe sockets, no limitation in this sense is intended, as thesockets, or either of them, may be replaced by externally threaded ends, or the device may have sockets or terminals respectively tapered interiorly and exteriorly, or any interchange or interpolation between the connections used in gas-fixtures generally, such as any of the cooks sold by the trade, the various-species of which are defined by the terms straight; elbow, bracket,- hose, pendant, -swing, revolving; pillar, etc. Thebefor'e mentionedcentral -part 12 has a bore'25, transverse to the longitudinal dimension of the body or casing 11. The said bore is tapered, that is, made conical to" provide a seat for a correspondingly-shaped plug member, 26, fitted therein, so as to afford a fluid-tight connection. Alined ports 27, 28 of smaller crosssectional area than the bore, intersect the latter at right angles to its transverse plane, but are eccentric thereto or offset toward one side of the axial line passing centrally lengthwise through the casing 11 and the plug member 26. ljhe outer ends of these ports communicate w th the previously ment oned recesses 19, 20, at the bottom of each, respectively, As the two ports are eccentrically disposed on one side of the casing 11, the neck portions 13, a 14 thereof are enlarged in the same direction in order to strengthen them, thereby giving each neck an elliptical shape, as at A passage 29 is provided in the plug 26 at the same level as the said alined ports 27, 28, so as to communicate therewith, within the bore 25. As will be seen in the} accompanying drawing, the said passage 29 conit entirely disappears at the surface of the latter. Preferably, the arrangement is such that the point at which the said groove vana ishes lies diametrically opposite the other end of the segmental channel 29.

In the position occupied by the plug member relatively to the casing in Fig. 1, the communication between the ports 27 and 28 is interrupted, to the extent of being completely cut off. The change of position represented in Fig. 2, on the contrary, places the several straight-line passages through the valve casing and the plug in full register one with another. The valve is then completely open, so, that a gas-burner, for in stance, receiving its supply therethrough, will feed a flame to the fullest extent. Fig. 3 illustrates the plug member 26 in a position diametrically opposite to that shown in Fig. 1, whereby the. flow of gas is di minished and allowed to reach the jet in the minimum quantity compatible with the feeding of the flame, to wit, without subjecting it to the danger of becoming extinguished. In the last named position of the plug member, the reduced end of the groove 30 is directly in communication with the port 27 and permits only a tiny stream of gas to pass through, just enough to keep the flame alive or burning. At the larger end of the conical plug 26 is formedia handle portion orv finger. grip 31.

One edge of the latter may be obtusely bev- V eled as at 32, to differentiate the shape thereof from that of theopposite edge 33, which may remain slightly rounded as customarily. madeaQ-The beveled edge of the finger grip is placed on the same side of the plug as the groove 30 therein. By virtue of this arrangement, a person is-able to tell even in the dark, what is the position oftlie plug inside the casing at any given time simply by passing his or her finger Over the edges of the grip andnoting its bevel lies next to the laterally protuberate portion 12 of the casing 11, or is located adjacent to the approximatelystraight face of the casing directly opposite, or else occupies some intermediate.position. This is of great importance in the case of a gas leak, or free escape of unburning gas for then the person investigating the causethereof has a ready means of ascertaining whether itlis due to i the valve being open in any Way, or to a faulty fixture, and doing so without the use of an artificial light, which, as is well known, might produce a dangerous exploslon.

Figs. 1, ,2 and 3 respectively illustrate '7 three Well defined positions of the plug member, within its casing determining each by the particular location of the crescent lune before described. w In the first, the reduced portionof the crescent-lune or groove 30, is on the.,la'te 'ally' protuberateside of the casing, to wit, the left side in the present exemplification of the invention. In the second, the groove lies across the interior of the casing. In the third, ithas passed over to the right of the casing on the side remote from thelateral-protuberance. 12, and pointed in a reverse direction. The several positions here outlined respectively denote whether the passageway through the plug member is closed, or'fully open, or re.

stricted to the minimum Without interrupt- 7 ing the flow therethrough. Itwillbe recognized that no adjustment for intermediate positions is necessary. This not only is conducive to safety, but also effects a saving of gas in practice, because it enables the user on leaving an apartment, readily to adjust the. burner to the lowest supply permissible, withouttrying to bring the flame gradually to the desired reduction in size. v .1.

Incidentally, it may be remarked that a gas-cock of this description is especially suitable for bath and bed rooms, halls and cellars and in fact foriall places thatare-not constantly inhabited. Obviously a .gradu ated adjustment may also be had with a device constructed accordingto the principle herein set forth, by turning. its plug in different arcs oramounts, away from the right hand position exemplified in Fig. 3 of the annexed drawing, the peculiar configuration of the crescent-lune groove 30 permitting fine regulation of the passage through the casing with a comparatively wide angular or arcuate movement of the finger grip 31 and the plug member 26 connected therewith.

To prevent over travel of the said member 26 from or beyond either of its extreme stations, respectively illustrated in Figs. 1 and 3, the common expedient of a pin 34 driven into one side of the plug and adapted to come into contact alternately with shoulders 35 and 36 formed on the casing 11, may be employed. The means for holding the plug from endwise movement in its seat 25 is shown as consisting of the prevalent type of washer and screw 37 and 38 respectively, which co-act with a neck 39, formed at the outer end of the said plug.

Although certain mechanical details of known construction have been applied to the invention herein disclosed, it is evidently susceptible of other embodiments with substitutes of different structure, whether or not equivalent to the same. Furthermore, it will be noted that the contour of various parts may vary to a considerable extent without affecting in the least the operative ness of the parts. Thus, for example, the finger grip 31 has been shown as formed with the larger end of the conical plug member. But, it is readily comprehended that the grip can be as effectively located at the other extremity of the plug, or that a separate key or handle could be employed for the manipulation of the device.

Having described my invention what I desire to secure by Letters Patent and claim 1s:

1. A device ofthe character set forth, comprising a casing with a transverse bore and portsplaced in alinement at one slde of the latter, in combination With a plug rotatably seated in said bore and having a channel formed of a segmental passage and a crescent-lune groove either of which is adapted to register with both of said alined ports, alternately.

2. A device of the character set forth, comprising a casing provided with a transverse bore and alined ports leading respectively into and out of the same across one side thereof, in combination with a plug having one side adapted to interrupt the flow from one of said ports and the other side provided with a compound channel having outlets of different sizes at opposite ends arranged to communicate with both ports in succession.

' 3. A device of the character set forth, comprising a casing formed with a substantially central bore extending transversely thereof and eccentrically located ports in alinement at one side of the bore, combined with a plug in the latter having a laterally disposed channel of compound formation including a segmental passage and a crescentlune groove adapted alternately to be brought into register with both said ports.

4. A device of the character set forth, com prising a casing having a transverse bore and alined ports arranged to communicate therewith at one side only, a rotatable plug member in said bore formed with a channel having terminals of different capacity either of which is adapted to register alternately with both of said ports, and external means on said plug capable of indicating its position within the bore.

5. A device of the character set forth, comprising a casing provided with a transverse bore, alined ports on one side thereof, and an external protuberance, in combination with a plug member rotatably seated in said bore and having a channel adapted to register with the latter, including a crescentlune groove arranged to assume different positions consecutively with relation to said protuberance and both ports, and means exterior to said member turning therewith coincidently with said groove so as to indicate its location relatively to said protuberance.

Signed at the borough of Manhattan, in the county of New York and State of New York, this 8th day of May, A. D. 1916.

KNUT G. THIMAN.

Witnesses:

H. C. KARLsoN, A. M. LINDENSTRUTH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

